Hi nice entry. I really like the art on the targets, it would be nice to have the HUD designed to the same level of detail. Also I'd like to see a high score (as well as a % of accuracy) with smaller targets worth more points then bigger ones. You could then add in targets that subtract from your score. I wanted to shoot rapidly but the delay on shooting caused frustration when it wouldn't fire at a target only for me to watch the target slide off the screen and watch my % drop. You could add in power up targets that are small which increases your fire rate or gives you better guns. Rapid fire wouldn't make it too easy if you had elements that subtracted from your score if hit.
Also a way to complete the level like reaching a certain score and a way to die like dropping your percentage below a certain level or something.
Nicely done for 72 hours though :)